人教版初中八年级数学上册整式的乘法和因式分解练习题69Word下载.docx
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人教版初中八年级数学上册整式的乘法和因式分解练习题69Word下载.docx
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4-24x+36x2(m-n)2+6m(m-n)+9m2
100b2-140b+4916a2-8a(m-n)+(m-n)2
x2+11x+30x2+5x-24
15x2+55x+401-100x2
(2x2y)2•(-x3y2)3(5a+6b)(a-2b)
3x(x+2)(x-2)(x-2y-3)2
70.2×
69.8100012
(7a)3•b4÷
16a2b2(x4y2-4x3y2z2)÷
7xy
3(x+4)2+(4x+1)(2x-2)(y+z)2+(2y+z)(2y+z)
x2-y2(d+p)(x+y)+(d+p)(x+y)
a2-10ay+25y29-36(n+a)+36(n+a)2
b3-25bx4-256
40a4+20ab4ab2c-70bc
16p(7+a)-20p(7+a)2(7+a)-m(7+a)
100-9a2100x2-100y2
36n2-144(x-6y)2-(3x+9y)2
9-12m+4m2(a-b)2+6m(a-b)+9m2
16n2-48n+369a2-6a(a+b)+(a+b)2
x2+6x+8x2+5x-50
6x2-33x+2749-64n2
(-2xy)3•(-x2y)3(a-2b)(a+6b)
3x(x+1)(x+2)(x+y+1)2
2.4×
1.69002
(5a)3•b4÷
20ab(9x3y4+x4y3z3)•xy
(x+2)2-(2x+5)(2x+3)3(y-z)2-(4y+z)(2y-z)
4x2-36y2(m+b)(x-5y)+(m+b)(2x-6y)
a2+16ay+64y216+48(c-p)+36(c-p)2
b3-36bx4-1
60a4+40a4b12a3b2c+20b
12p(y-7)+24p(y-7)8(y-7)+m(y-7)
49-81y23x2-27y2
16m2-16(x-6y)2-(4x+9y)2
9+24n+16n2(a-b)2-10m(a-b)+25m2
16y2+48y+369a2+6a(a+b)+(a+b)2
x2-13x+40x2-2x-35
5x2-37x+1425-9m2
(-3xy2)3•(-xy)3(4a+b)(a+b)
3x(x-3)(x+4)(2x-y-1)2
30.4×
29.680012
(9a)2•b3•12ab(x2y2-9x3y3z4)÷
x2y
(x+1)2-(4x+2)(3x-4)3(y-z)2-(4y+z)(3y-z)
x2-y2(n+b)(4x-y)-(n+b)(x-y)
a2+6ax+9x29-36(c+m)+36(c+m)2
c3-4cx4-256
10a4+70a216abc-20b3
6p(5-b)-36q(5-b)8(5-b)-m(5-b)
9-36b236x2-4y2
49m2-25(7x-y)2-(x-9y)2
49-42a+9a2(x+y)2-12m(x+y)+36m2
81m2+144m+6425a2+10a(a+b)+(a+b)2
x2+3x+2x2+5x-6
6x2-33x+421-4m2
(3xy)2•(xy3)3(a-b)(4a+4b)
2x(x+3)(x+2)(5x-2y+3)2
2.1×
1.9952
(6a)2•b3÷
4ab(x3y2-x3y2z2)÷
xy2
4(x+3)2+(4x+4)(4x+2)3(y+z)2+(4y+z)(2y+z)
100x2-49y2(n+d)(6x-3y)-(n+d)(2x+2y)
a2+16ax+64x216-40(b-m)+25(b-m)2
a3-25a81x4-256
70a+10a3b12a4bc+90bc
14q(y-7)+8q(y-7)4(y-7)+m(y-7)
4-9n23x2-48y2
9b2-169(x+y)2-(x-9y)2
100-200m+100m2(x-y)2-6m(x-y)+9m2
36m2-96m+6425a2+10a(m+n)+(m+n)2
x2+10x+21x2-9x-10
15x2+35x+1064-64a2
(3xy)2•(xy2)2(a+2b)(4a-2b)
-3x(x+2)(x+1)(x-4y-3)2
10.2×
9.84992
(5a)3•b4•16a2b2(x4y3-9x3y3z3)•8x2y2
(x+3)2+(3x+4)(2x-5)2(y+z)2+(4y+z)(4y-z)
x2-100y2(c+n)(3x+y)+(c+n)(4x-y)
a2-20ab+100b29-36(a-n)+36(a-n)2
a3-64ax4-81
35a4+80a2a3bc+20b2c
16p(y+4)+32q(y+4)4(y+4)+m(y+4)
49-4y227x2-3y2
0.16x2-9(x+2y)2-(5x+y)2
36-84x+49x2(a+b)2+6m(a+b)+9m2
81x2+36x+49a2-6a(x+y)+(x+y)2
x2+10x+24x2-6x-40
6x2+25x+249-64m2
(2xy)3•(-x3y2)3(4a-b)(6a-b)
2x(x-2)(x-4)(x+5y-1)2
9.2×
8.819992
(7a)3•b3÷
4ab2(x3y4+3x2y3z2)•x2y2
(x+2)2+(4x+2)(4x+2)4(y+z)2-(3y-z)(3y-z)
49x2-y2(q-a)(x-3y)-(q-a)(3x-6y)
a2-16ax+64x225-40(d-n)+16(d-n)2
d3-81dx4-16
40a-40a3b4a2bc-20b
14q(y-8)-4p(y-8)6(y-8)-m(y-8)
100-25m22x2-8y2
9m2-169(3x+y)2-(x+y)2
81-144x+64x2(x+y)2+10m(x+y)+25m2
25y2+50y+2536a2+12a(a+b)+(a+b)2
x2-11x+18x2+4x-32
10x2+64x+7016-64y2
(3xy2)3•(xy3)3(a+4b)(a-b)
3x(x+1)(x+4)(x+2y+3)2
8.86022
(3a)2•b2÷
2ab(x2y2-6x2y4z3)•4x2y
4(x+1)2-(2x+1)(3x+1)2(y-z)2-(2y-z)(4y-z)
x2-y2(n-c)(x-y)+(n-c)(5x+y)
a2+12ab+36b24+24(d-n)+36(d-n)2
a3-49ax4-256
90a+30a3b10a3bc+60b3
16p(2+b)+32p(2+b)4(2+b)+m(2+b)
81-9n218x2-50y2
16x2-289(x-y)2-(9x-y)2
25+100y+100y2(a-b)2+10m(a-b)+25m2
81a2+144a+6436a2-12a(a-b)+(a-b)2
x2-7x+10x2-4x-12
16x2+28x+1264-64b2
(2x2y2)3•(x2y2)2(a-4b)(6a-b)
3x(x-1)(x+1)(3x-4y+2)2
90.2×
89.840012
(9a)3•b4•12a2b(x2y4-x2y2z2)•8x2y2
(x+1)2+(3x+4)(2x+2)(y-z)2-(2y+z)(3y+z)
49x2-4y2(a+n)(x-y)+(a+n)(5x-y)
a2-6ab+9b29+36(b-q)+36(b-q)2
c3-100cx4-256
10a-10a4b10ab3c+40b
8q(9+a)+8q(9+a)6(9+a)+m(9+a)
64-16b250x2-18y2
0.64a2-36(x-2y)2-(6x+9y)2
100+60n+9n2(x-y)2-12m(x-y)+36m2
25b2-50b+2516a2-8a(x+y)+(x+y)2
x2-12x+27x2-4x-32
3x2-15x+1816-49n2
(-3x3y)3•(-x3y2)2(a+b)(a-b)
2x(x+5)(x+2)(x-5y-1)2
70.3×
69.7100032
(9a)2•b2•14a2b2(x4y3+8x2y4z3)÷
(x+1)2+(3x+2)(3x-2)2(y+z)2-(2y+z)(2y+z)
16x2-25y2(b-m)(5x+y)-(b-m)(x-y)
a2+4ax+4x216+24(b-n)+9(b-n)2
d3-100d16x4-81
35a2+20a314ab2c-60b
16q(y-7)-8q(y-7)2(y-7)-m(y-7)
16-25a2100x2-64y2
9y2-100(x+3y)2-(9x-y)2
4+24x+36x2(a-b)2+10m(a-b)+25m2
16y2+16y+416a2+8a(x+y)+(x+y)2
x2-12x+32x2-3x-28
12x2+33x+1849-36n2
(2x3y2)2•(-x3y)2(a+5b)(a-b)
-3x(x+5)(x-2)(x-2y+4)2
89.889982
(4a)3•b3•18ab2(x4y2-2x2y3z4)÷
3xy
(x+1)2-(3x-4)(3x+1)3(y+z)2-(4y-z)(2y-z)
81x2-49y2(b-m)(x-2y)+(b-m)(6x-6y)
a2+20ab+100b29+30(p-c)+25(p-c)2
d3-16dx4-256
25a4-70a2b18abc+100b3c
14p(x+1)-8p(x+1)2(x+1)-m(x+1)
25-49x23x2-3y2
25y2-400(8x+3y)2-(x+8y)2
36+108x+81x2(m+n)2-4m(m+n)+4m2
49y2-112y+649a2-6a(x-y)+(x-y)2
x2-14x+49x2-5x-24
3x2-26x+3536-100m2
(-2x3y2)3•(xy)2(a+4b)(5a+b)
2x(x+1)(x+2)(2x-5y-2)2
90.1×
89.96012
(9a)3•b3•6a2b(x2y2+x4y4z2)•3xy2
4(x-1)2+(2x+1)(2x+5)2(y+z)2-(4y-z)(4y+z)
x2-y2(b-q)(5x-2y)-(b-q)(x+3y)
a2+16an+64n236-60(m-a)+25(m-a)2
b3-100bx4-16
5a2-20a10a4bc-20bc
18p(x+7)-20p(x+7)4(x+7)-m(x+7)
49-64x227x2-27y2
49a2-361(2x-5y)2-(x-10y)2
4-24a+36a2(a+b)2-8m(a+b)+16m2
25m2+50m+2536a2-12a(x-y)+(x-y)2
x2-5x+6x2+2x-24
5x2+20x+159-9x2
(-2xy)2•(-x2y)2(a-5b)(a-b)
2x(x+3)(x+2)(x-y-1)2
69.710042
(9a)2•b3÷
18ab2(x2y2-x4y3z3)÷
2xy
(x+3)2+(2x-4)(4x-5)(y+z)2-(2y+z)(2y-z)
36x2-y2(m-b)(3x-6y)+(m-b)(3x+2y)
a2+12ab+36b216+48(q-d)+36(q-d)2
b3-100b16x4-16
100a2-60ab6a4b2c-20b
4p(8+a)+16p(8+a)8(8+a)+m(8+a)
64-100a23x2-3y2
0.09a2-256(3x-y)2-(5x+9y)2
9+24x+16x2(x-y)2-4m(x-y)+4m2
16n2+72n+8136a2+12a(x-y)+(x-y)2
x2-8x+12x2-3x-40
3x2+17x+2464-4m2
(-2xy2)2•(xy)3(4a+3b)(2a-4b)
3x(x-2)(x-3)(2x+y+4)2
1.919972
(4a)3•b4•16a2b(x4y4-3x3y4z4)•xy2
(x-2)2-(2x-5)(4x-5)(y+z)2-(2y+z)(3y+z)
81x2-y2(c+m)(x+y)+(c+m)(x+5y)
a2-16ax+64x225-60(c+q)+36(c+q)2
d3-100d16x4-16
55a4+80a3b20a3bc-60b
4p(2-a)-8p(2-a)6(2-a)-m(2-a)
1-64b227x2-27y2
4m2-100(x-y)2-(7x-y)2
64+48b+9b2(a+b)2+4m(a+b)+4m2
100b2-120b+369a2-6a(x+y)+(x+y)2
x2-10x+16x2-6x-16
3x2-11x+1036-81a2
(-2xy)3•(-x2y3)3(6a-6b)(a-4b)
3x(x+4)(x+3)(6x+y+4)2
7.4×
6.699982
(8a)2•b2•20ab(x2y3-3x4y3z4)÷
4xy
(x+4)2-(3x+5)(3x-4)(y-z)2-(3y-z)(3y-z)
25x2-49y2(n-a)(4x+y)-(n-a)(x-4y)
a2-10an+25n24+12(p+d)+9(p+d)2
a3-49a81x4-16
95a+10a44abc+50b2c
16p(y+4)+32p(y+4)6(y+4)+m(y+4)
16-64b24x2-16y2
0.04y2-1(x-y)2-(x-y)2
64+144x+81x2(a+b)2-10m(a+b)+25m2
36b2-108b+8125a2+10a(m+n)+(m+n)2
x2-14x+48x2+1x-30
9x2+42x+409-4m2
(2xy)2•(-x2y2)3(a-3b)(a+4b)
-3x(x-2)(x-4)(x-y+2)2
4.3×
3.79952
(4a)2•b2•20a2b(5x2y3+7x3y2z3)÷
2xy2
(x-1)2-(4x-2)(4x-4)(y-z)2-(2y+z)(4y-z)
x2-y2(q+c)(x-5y)-(q+c)(x-5y)
a2+14an+49n216-24(p+d)+9(p+d)2
a3-16ax4-1
50a3+30a3b16ab2c+80b4
14q(x-6)-20q(x-6)4(x-6)-m(x-6)
49-25n236x2-16y2
9a2-324(4x-5y)2-(x+8y)2
81-54n+9n2(x+y)2-10m(x+y)+25m2
81a2+90a+2525a2-10a(m+n)+(m+n)2
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